Abstract
Heliscomyids were among the smallest rodents from North America, both fossil and Recent. The skull was sciuromorphous (Fig. 15.1) and the rostrum was narrow (laterally). There is no indication of sagittal or lyrate crests on the frontal bones. There is a distinct parapterygoid fossa on the posterior palatal surface as in all other geomyoids.
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© 1994 Springer Science+Business Media New York
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Korth, W.W. (1994). Heliscomyidae. In: The Tertiary Record of Rodents in North America. Topics in Geobiology, vol 12. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-1444-6_15
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DOI: https://doi.org/10.1007/978-1-4899-1444-6_15
Publisher Name: Springer, Boston, MA
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